2003 Pontiac Grand Prix 3.1 V6.
Check Engine Light codes P0753.
Question = I have a 2003 Pontiac Grand Prix with
84,000 miles on it. My "Service Engine Soon" just
came on about a month ago and when it did my
cruise control stopped working as well.  I can feel it
has trouble shifting and I have hooked it up to a
machine that AutoZone has to check my problem
and it says its a transmission module (P0753).  
We have asked others who say that it probably
isn't the problem because they have never heard of
one of those going out and it's probably a wiring
issue.  Can you tell me what you think it might be?

Answer:
This codes refers to the 1-2 shift solenoid. Be sure
to
check all fuses first. Specifically the "TCC" fuse
in the underhood fuse block.

If that is ok, 2 things possible. Either you have a
connector problem at the 20-way  transmission
case connector causing this code, or the solenoid.
The solenoid is on the  valve body in the side case
of the trans.
Suggest disconnecting transmission connector
with key off, look at all terminal, pull the harness a
little so as to change its position, then plug it back
in. Clear the codes and drive it.
2001 Pontiac Grand Prix
Question = the factory radio clock display lights burns sometime
and sometimes it want come on for a week is there a way to
replaced the bulb in it instead of changing the radio out ...Thanks
Answer:
If the back lighting of the radio wont come on, there are bulbs that
are soldered to the circuit board. Very tricky to replace. Usually
end up causing more problems. If it is the actual display, this is
vacuum florescent and there is nothing that can be repaired.
2003 Grand Prix P0753

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